Hello everyone,I have a Fisher and Paykel Softtouch range. It is having an issue with it that I am try to diagnose before calling in a repair person. When turning the mains power on the range display is totally blank. Also the range beeps for approx 30 seconds. Under normal operation the display flashes with the clock and it is possibly to turn the oven functions on. In the weeks before it stopped working the range was having occasional problems like the display stopping but it would be alright after turning the mains power off for 10 minutes or so. It wont return to normal operation after turning the mains power.